Obama senior adviser David Axelrod said Greene was not a "legitimate" candidate and called his victory "a mysterious deal." (Yes, how could a young African-American man with strange origins, suspicious funding, shady associations, no experience, no qualifications, and no demonstrable work history come out of nowhere and win an election?)
They're hopping mad, these liberals, but it's not clear what their theory of the crime is. Before accusing Republicans of committing a dirty trick, apparently no one asked the question: "OK, but what was the trick?"
The key to Greene's victory, you see, is that he got more votes. How do liberals imagine Republicans pulled that off? Mesmerize the Democrats into voting for an idiot? If they could do that, John McCain would be president.
More, including a useful history lesson from 1998, at the link.